You can have milk ducts going all the way up into your armpits or it could be a lymph node that's a little enlarged as your milk is coming in. You can try to compress/massage it when you nurse. Watch for redness/pain/warmth/fever as signs of mastitis.
BFP#1 9/14/10 (EDD 5/21/11); no fetal pole 6w6d, 7w4d, d&c 10/8 BFP#2 3/16/11, beta 138; 4/12 Baby/HB DS born 9/10/11 at 29w4d due to partial abruption and PTL BFP#3 8/19/13 Another boy! 17P, modified bedrest and Nifedipine helped us have a termie! DS2 born 4/19/14 at 38w5d.
I had one in my armpit when my milk came in with ds. It was def bigger than pea sized! Warm compress, and massage when feeding might help. If you have access to a lactation consultant, I would ask one. I had a great LC that was super helpful when I had one.
That'd be a lymph node. They indicate possible infection (mine get hard and painful sometimes when I'm sick). I second the warm compress and a chat with your LC.
I have actually gotten a lump under my arm with this pregnancy and a different one under the other arm with my last. For me it was cysts. Some woman get cystic with pregnancy. Ask your ob/mw at your next apt.
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Yes most likely from bfing. Normal but I'd mention it
1st loss 8/31 2nd pregnancy -TWINS lost DD1 twin at 8 weeks 6 days DD1 born 6 weeks early
3rd pregnancy- TWINS AGAIN lost both babies at 9 week appt
4th pregnancy- singleton- born at 38 weeks 1 day with the help of weekly 17P injections 5th pregnancy- CP in June 6th pregnancy It's a BOY
Re: Breastfeeding and armpit lumps
BFP#2 3/16/11, beta 138; 4/12 Baby/HB DS born 9/10/11 at 29w4d due to partial abruption and PTL
BFP#3 8/19/13 Another boy! 17P, modified bedrest and Nifedipine helped us have a termie! DS2 born 4/19/14 at 38w5d.
2nd pregnancy -TWINS lost DD1 twin at 8 weeks 6 days DD1 born 6 weeks early
3rd pregnancy- TWINS AGAIN lost both babies at 9 week appt
4th pregnancy- singleton- born at 38 weeks 1 day with the help of weekly 17P injections
5th pregnancy- CP in June
6th pregnancy It's a BOY